Heat exchanger



Aug. 17,1926.I 1,596,383

'E. C. WEISGERBER HEAT EXGHANGER Patented Aug. 1 7, 1926.

UNITED STATES EDWIN QWEISGERBEB, or LONG BEACH, CALIFORNIA.

HEAT EXCHANGER.

Application led February 18, 1924. lSeria-1 No. 693,586.

My invent-ion relates to a device for conserving and utilizing otherwise waste heat of fluids, and it has especial reference to an apparatus for Iuse in connection with the treat- 5 ment of oils and adapted to bring about an exchange of heat units between two oil bodies.

The object of the. invention is to provide a simple and easily assembled construction lo for-the above purposes in which the greatestnumber of heat units of a heated or treated oil body may be extracted by an oil body to be treated, thereby to effect an economy in t-hegsubsequent treatment of the oil.

Another object of the invention is to provide a device for causing one heated liquid to give off in a continuous manner its heat to another body of liquid, in which the oil bodies are exposed each to the other along the greatest surface areas and for the maximum length of time and the oil is circulated" in a manner to retard the speedy exit'thereof from the apparatus whereby the lpro` longed exposure of the cool oil to the heat in the area heated by the hot oil or residuum results in an effective heat transfer.

, Other objects will appear from the speciication following, lin connection with the accompanying drawings which represent an embodiment of the invention and in which Fig. 1 is a side elevation, partly in section, the section being taken on line 1--1, Fig. :2, showing a cylindrical enclosure containing means for causing thev oil to travel in circuitous routes, and

Fig. 2, is a front end view, showing the front plate removed and the general arrangement of baffles and tubes for effecting the pur-poses of this invention.

The invention., as illustrated, itself constitutes a complete self-contained unit, portable, if desired, and easily attached to a relining system or made an integral part of same. It consists of a suitable enclosure 1, preferably in the form of a cylinder, having a hot residuum inlet 2, and a residuurn outlet 3. The hot residuum oil, as seen, is admitted into the top of the cylinder, and courses downwardly in a to and fro path and through the outlet 3, and the oil to be treated flows counter the direction of flow of the residuum, and for this purpose is pumped or otherwise forced through a series of horizontally disposed pipes forming a coil 4:, which is connected by a rising bend 5, in series with a diametrically smaller coil 6,

disposed above said coil 4 and lying in substantially a horizontal plane.` The coil 6, through the medium of a rising bend 7, connects in series with a coil 8 .substantially 60 'horizontally disposed above said coil 6 and 'this manifold 14 is connected by tiers of 'horizontally disposed tubes or dues 15, with a corresponding manifold 16. From this manifold 16, the oil escapes through a single pipe 17 after having traversed the various coils and flues, all of which, as seen, are completely enclosed in the cylinder 1. It will also be seen that the risers 5 and 9,4 and the box or container 10 and manifold 14, are at one end of the cylindrical enclosure, while the riser 7 and the header 11 and manifold 16 are disposed opposite said first named devices and that thereby the entire length of the ues, tubes, pipes and coils are subjected to the heat of the incoming residuum, and the oil therein heated, as it travels through v these pipes, headers, manifold andthe like.

In order that as nearly a perfect exchange 90 of hea-t as possible may be effected, the oil passing through the coils and tubes is distributed over and through a plurality of connected zones within the enclosure, each succeeding zone of the enclosure for this purpose having a larger number of tubes of smaller diameter. The greatest number of tubes m pipes lie in that zone of the cylin drieal enclosure wherein the hottest residuum enters and the provision of the multiplicity of tubes is made to cause a distribution of the oil over the greatest surface area where the heatof the residuum is greatest.

the cylinder 1 to knear the other end wall and respectively between pipe 17 and tubes 15; between tubes. 13 and 12 and coils 8 and 6. Baiiles '21, 22, and 23 respectively alternate with said bafes 18, 19 and 20, and extend from the other end of the wall of the cylinder to near the o posite end wall and between tubes 15 an 13; between tubes 12 and coil- 8 and between coils 6 and 4. Thus the hot residuum travels slowly through the apparatus, while the cooler oil in the flues or pipes is distributed over various areas to bring about themost effective heat exchange. Y

What I claim, is: 1. A heat exchanger device comprising an enclosure having a hot residuum inlet and an outlet, a plurality of tubes within said enclosure varying in 'size and number from` 20 part of said enclosure connected in series the bottom upward, the tubes in the lower to form a zigzag coil, headers connecting the tubes lin the upper part of said enclosure in parallel, and alternating baille plates extended between the coils and tubes to retard the How of residuum.

,2. A device for etecting an exchange of heat 'between two liquids, comprising an enclosure having a hot residuum inlet and an outlet, tubes within said enclosure varying 4in size and number from the bottom upward, the tubes in the lower part of the enclosure connected in series to form a zigzag coil, and the tubes in the upper part of said enclosure connected in parallel by headers, the lowest of said headers communicating with the uppermost of said coil, and bale plates extended between said coils and tubes. y

' 3. A. device for electing an exchange of heat between two liquids comprising an enclosure having in the top thereof a residuum inlet and a residuum outlet at the bot-` tom, a plurality of tubes within saidenclosure varying iny size and number from the bottom upward, the'tubes in the lower part of said enclosure connected to form a continuous coil, and the tubes in the upper part of said enclosure connected by headers, said coil connected with the lowest of said headers, and retarding means between the tubes.

In testimony whereof I have set my hand. EDWN C. VVEISGERBER. 

